html {
	padding: 0;
	margin: 0;
	font-family: "微软雅黑" arial;
}
body {
	padding: 0;
	margin: 0;
}

div{
	box-sizing: border-box;
	/*border: 0.5px royalblue solid;*/
}
.foot{
	text-align: center;
	background-color: #f2f2f2;
	margin-top: 4vw;
	padding: 1.5vw 0;
}

